Tactics for the Stronghold.

Well, I don't even know what conclusions to draw other than that you need a lot of luck. Maybe the strategy of building Beasts in the first week isn't the right way to win?

Well, it's clear – the Beasts are to blame.
In your specific case, the magic was a complete failure.
And I don't understand something – with forgetfulness, how did you allow your Beasts to be shot down???
Try to imagine the opposite situation – when the armies are the same, the opponent has nothing to remove your mass slow effect or counter it, and he's so nervous that he forgets to cast "forgetfulness" on your Orcs... Instant victory...
However, I don't understand – what do the Beasts have to do with it.